VOLVO
ECM-U012086 - Lost Communication with Starter/ Generator Control Module. Bus Signal / Message Failures. Signal invalid
System
Motorsteuergerät (ECM)
Volvo-Modelle, für die dieser Fehlercode gilt
Gilt für folgende Modelle:
7 ModelleS60 (2011–), S80 (2007–), V60 (2011–), V70 (2008–), XC60 (2009–), XC70 (2008–), XC90 (2003–)
Modelle nach Baujahr und Motor anzeigen (19)
- Volvo S60 (2011–)2011–2014Nur Motor: B6304T4
- Volvo S60 (2011–)2015Nur Motor: B6304T3, B6304T4, B6304T5
- Volvo S80 (2007–)2007Nur Motor: B6324S, B8444S
- Volvo S80 (2007–)2008–2009Nur Motor: B6304T2, B6324S, B8444S
- Volvo S80 (2007–)2010Nur Motor: B6324S2
- Volvo S80 (2007–)2011–2015Nur Motor: B6324S4
- Volvo V60 (2011–)2011–2014Nur Motor: B6304T4
- Volvo V60 (2011–)2015Nur Motor: B6304T3, B6304T4, B6304T5
- Volvo V70 (2008–)2008–2009Nur Motor: B6304T2, B6324S
- Volvo V70 (2008–)2010Nur Motor: B6324S2
- Volvo XC60 (2009–)2009Nur Motor: B6304T2
- Volvo XC60 (2009–)2010Nur Motor: B6304T2, B6324S2
- Volvo XC60 (2009–)2011–2015Nur Motor: B6304T4, B6324S4
- Volvo XC70 (2008–)2008Nur Motor: B6324S
- Volvo XC70 (2008–)2009Nur Motor: B6304T2, B6324S
- Volvo XC70 (2008–)2010Nur Motor: B6324S2
- Volvo XC70 (2008–)2011–2015Nur Motor: B6324S4
- Volvo XC90 (2003–)2005–2006, 2011Nur Motor: B8444S
- Volvo XC90 (2003–)2007–2010Nur Motor: B6324S, B8444S
Was bedeutet der Fehlercode?
The engine control module (ECM) controls the alternator charging voltage via LIN communication with the alternator control module (ACM), on request from the central electronics control module (CEM). The code is set when the engine control module detects a disturbance in the communication, and it concerns an invalid signal on the LIN network. Although the code is titled lost communication, it concerns the signal from the alternator control module.
Mögliche Ursachen
- Internal fault in another control module on the same part of the LIN network
- Faulty alternator control module (ACM), including its charge regulator
Was Sie tun können
- 1Check that the fuses are intact and that the battery is well charged
- 2Check the connectors at the alternator and at the engine control module for loose or oxidised contacts
- 3Look for chafed wiring on the LIN signal wire. Use a multimeter to check that it has no break and is not shorted to ground or supply voltage
- 4If you have a diagnostic tool: read the alternator status in live data with the engine running, and check whether the fault returns after the connectors have been checked
- 5If the fault returns: have a workshop with diagnostic equipment check the alternator control module and any other control modules on the LIN network
Symptome, die Sie bemerken können2
- The battery discharges
- The battery is dead or shows low voltage
Allgemeine Hinweise für Fahrzeughalter. Die Diagnose am Fahrzeug kann eine andere Ursache zeigen.